Car-axle box.



No. 727,987. PATENTED MAY 12, 1903. i

J. MALTRY. GAR AXLE BOX.

APPLICATION FILED OCT 25 1901.

A fro/awry WITNESSES N0 MODEL.

PATENTBD MAY 12. 1903.

- J. MALTRY.

GAR AXLE BOX.

APPLICATION FILED OUT. 26. 1901.

2 SHEETS-QHEET 2.

N0 MODEL.

w T N E V MAM A TTORNE Y UNITED STATES Patented May 12, 1903;

JOHN MALTRY, OF OMAHA, NEBRASKA.

CAR-AX LE BOX.

SPECIFICATION forming part of Letters Patent No. 727,987, datedMay 12, 1903.

Application filed October 25, 1901. Serial No. 79,984. Q10 model.)

To all whom it may concern:

Be it known that I, JOHN MALTRY, a citizen of the United States, residing at Omaha, in the countyv of Douglas and State of Nebraska, have invented certain new and'useful Improvements in Oar-Axle Boxes; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to car-axle boxes; and it consists generally of the peculiar construction, arrangement, and combination of the various parts, as will be hereinafter described, and more particularly of the novellyconstructed oil or lubricant chamber and a dust-guard therefor.

The principal object of the invention is to provide for a'constant' supply of the lubricant to the journals of'the axle and to prevent the entrance of dust into the oil or lubricant chamber.

Another object of the invention is to so construct and arrange the several parts that the oil or lubricant chamber may be readily removed or detached from the journal.

Still another object of the invention is to simplify the construction and render more easy the adjustment of the several parts.

These and other objects are attained by means of the mechanism illustrated in the drawings, in which- Figure l is a vertical longitudinal section of my improved axle-box; Fig. 2, a similar section of the oil-chamber; Fig. 3, an elevation of the inner end of the journal-box, showing the dust-guard in position; Fig. 4, a central sectional view of'the dust-guard detached; Fig. 5, a top plan view of the axle-box, the cover to the supply-inlet being removed; Fig. 6, a side elevationof the same; Fig. 7, an end elevation, the dust-guard being removed; and Fig. 8 a transverse section.

Referring to the several views, the numeral 1 indicates an outer box or casing of any approved construction having both ends open and the top at its front end cut away to form an opening or recess 2 for the purpose of re ceiving an upwardly-extending portion of the oil-chamber, as will be hereinafter described.

Seated within the box or casing 1 is an oilchamber 3, having an open and a closed end. The oil-chamber at its outer or closed end is formed with an upwardly-extending portion 4, which sets into the open or recessed portion 2 of the box or casing 1, said extended portion being provided with an inlet-opening 5, through which lubricant is supplied to the oil-chamber. The opening 5 isclosed by a removable dust-proof cover 6, provided with a rubber gasket 7. The oil-chamber at its open end is provided with a transverse rib 1', which is adapted to set into a correspondingly-formed rabbet 4 formed in the inner surface of the top of the box or casing at its inner end, whereby in conjunction with the extended portion 4, fitting into the open portion 2, longitudinal movement is prevented. In the upper part of the oil-chamber there is form ed a recess 8, in which is seated a detachable plate 9, of Babbitt. metal, which plate serves as a bearing for the journal 10 of the axle. The inner surface of the top of the oilchamber at each end is provided with a transverse rabbet or recess 11, and the upper face of the bearing-plate is provided with corresponding ribs 12, which ribs setting into the rabbets prevent longitudinal movement of the bearing-plate when the parts are in proper position. Below the bearing-plate on each inner side wall of the oil-chamber is a longitudinal rib 13, which serves to support said plate in' position, and also to prevent it from dropping into the oil when the chamber is removed from the axle. The inner and outer ends of the bearing-plate, as shown at a, and the inner sides of the respective flanges of the journal, as shownat b, are correspondingly shaped, so as to provide an easy and smooth running of the axle. The oil-chamber is of slightly less width than the box or casing 1, and its sides are provided with bearing'plates 14, which construction atfords a slight lateral play of the oil-chamber within the box. To remove the oil-chamber from the j ournal,it is only necessary to raise its outer or front end and give it a slight pull. To prevent dust entering the oil-chamber and oil leaking therefrom, I employ a dust-guard, preferably of the following construction The numeral 15 indicates a collar, which closely encircles the boss 16 of the axle, and 17 is a similar collar, which also closely encircles said boss. Interposed between the two collars is a ring or band 18, which being of greater diameter than the axle-boss forms a chamber 19,surroundingtheaxle-boss. Suitablepacking may be, if desired, placed in the chamber 19. The collar 17 is provided at opposite sides with perforated ears 20 and the collar 15 with notches 21. The sides of the box or casing l are provided with perforated ears 22, in line with the ears and notches of the collars, and spring-actuated bolts 23, passing through said ears and notches, serve to hold the collars 15 and 17 and the ring 18 in close contact with one another and the collar 15 in close contact with the end of the oil-chamber, which projects a slight distance out of the box or casing 1. The tension of the springs may be regulated by means of the nut c and jamnut d, as shown, so that a constant and uniform pressure of the dust-guard may be maintained against the end of the oil-chamber to prevent leakage of the oil and to prevent dust entering said chamber.

While I have described and shown my invention applied to car-axle boxes, it will be understood that it is equally well adapted to any form of journal-box, such as are used on street-cars or on various kinds of machineshaftings.

Having thus fully described my invention, what I claim, and desire to secure by Letters Patent, is-- 1. In an axle-box, the combination with an outer casing having both ends open, said casing having a rabbet at one end and an opening or recess at the other end, of an oil-chamber, supported within the casing, having an open and a closed end,said oil-chamber having an upwardly-extending portion at one end, adapted to fit into the recessed portion in the outer casing, and a rib at the other end to fit the rabbet, whereby the oil-chamber is prevented from longitudinal movement, said upwardly-extended portion having a supplyinlet.

2. An axle-box comprising an outer casing having both ends open, an oil-chamber supported therein having longitudinal ribs on the inner surface thereof, means for preventing longitudinal movement of the oil-chamber, there being a recess in the upper part of said oil-chamber,a detachable bearing-plate seated in the recess, there being rabbets in the upper wall of the oil-chamber, and corresponding ribs on the upper surface of the bearingplate, adapted to fit said rabbets so as to prevent longitudinal movement of said bearingplate.

In testimony whereof I affix my signature in the presence of two witnesses.

JOHN MALTRY.

Witnesses:

E. G. M. GILTON, HENRY EHRENPFORT. 

